STM32L412R8Y6PTR datasheet(122/192 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L412xx

122/192

DS12469 Rev 8

∆VDD(MSI)(2)

MSI oscillator

frequency drift

over VDD

(reference is 3 V)

MSI mode

Range 0 to 3

VDD=1.62 V

to 3.6 V

-1.2

0.5

VDD=2.4 V

to 3.6 V

-0.5

Range 4 to 7

VDD=1.62 V

to 3.6 V

-2.5

0.7

VDD=2.4 V

to 3.6 V

-0.8

Range 8 to 11

VDD=1.62 V

to 3.6 V

-5

VDD=2.4 V

to 3.6 V

-1.6

∆FSAMPLING

(MSI)(2)(6)

Frequency

variation in

sampling mode(3)

MSI mode

TA= -40 to 85 °C

TA= -40 to 125 °C

P_USB

Jitter(MSI)(6)

Period jitter for

USB clock(4)

PLL mode

Range 11

for next

transition

3.458

for paired

transition

3.916

MT_USB

Jitter(MSI)(6)

Medium term jitter

for USB clock(5)

PLL mode

Range 11

for next

transition

for paired

transition

CC jitter(MSI)(6)

RMS cycle-to-

cycle jitter

PLL mode Range 11

P jitter(MSI)(6)

RMS Period jitter PLL mode Range 11

tSU(MSI)(6)

MSI oscillator

start-up time

Range 0

Range 1

Range 2

Range 3

Range 4 to 7

Range 8 to 11

2.5

tSTAB(MSI)(6)

MSI oscillator

stabilization time

PLL mode

Range 11

10 % of final

frequency

0.25

0.5

5 % of final

frequency

0.5

1.25

1 % of final

frequency

2.5

Table 58. MSI oscillator characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max Unit

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